【正文】
新目標(biāo)英語(yǔ)中考知識(shí)點(diǎn)總結(jié) 狀元從句 狀語(yǔ)從句指句子用作狀語(yǔ)時(shí),起副詞作用的句子。它可以修飾謂語(yǔ)、非謂語(yǔ)動(dòng)詞、定語(yǔ)、狀語(yǔ)或整個(gè)句子。根據(jù)其作用可分為時(shí)間、地點(diǎn)、原因、條件、目的、結(jié)果、讓步、方式和比較等從句。狀語(yǔ)從句一般由連詞 (從屬連詞 )引導(dǎo),也可以由詞組引起。從句位于句首或句中時(shí)通常用逗號(hào)與主句隔開,位于句尾時(shí)可以不用逗號(hào)隔開。 一、時(shí)間狀語(yǔ)從句 要點(diǎn) : 時(shí)間狀語(yǔ)從句,由以下連詞引導(dǎo): when while as after before as soon as since till /until by the time 在時(shí)間狀語(yǔ)從句中,要注意時(shí)態(tài)一致。一般情況下主句是將來(lái)時(shí)的時(shí)候,從句要用一般現(xiàn)在時(shí)。 當(dāng) ?? 的時(shí)候 Mozart started writing music when he was four years old. (當(dāng) )莫扎特的時(shí)候,開始寫音樂(lè)作品。 當(dāng) ?? 時(shí) He visited a lot of places while he was traveling. 他在旅途中參觀了許多地方。 在。的同時(shí);一邊 ?? 一 邊 ?? He smiled as he stood up. 他一邊站起來(lái)一邊笑著。 在 ?? 之后 He left the classroom after he had finished his homework the other day. 前幾天做完作業(yè)之后回的家。 在 ?? 之前 Mr. Brown had worked in a bank for a year before he came here. 布朗先生來(lái)這之前已經(jīng)在一家銀行里工作一年了 。 soon as 一 ?? 就 ?? We began to work as soon as we got there. 我們一到那就開始工作。 I will write to you as soon as I get home. 我一到家就給你寫信。 自。以來(lái) 到現(xiàn)在 表示自過(guò)去的一個(gè)起點(diǎn)時(shí)間到目前 (說(shuō)話時(shí)間 )為止的一段持續(xù)時(shí)間。主句一般用現(xiàn)在完成時(shí),從句用一般過(guò)去時(shí)。 Mr GREen has taught in that school since he came to China three years ago. 自格林先生來(lái)中國(guó)以來(lái),他就在這所學(xué)校教書。 (還可以用作介詞,本句從句還可以用短語(yǔ): since three years ago(自三年前以來(lái) )表示。 ) 8 till /until 都可以作連詞,連接時(shí)間狀語(yǔ),也可以作介詞,與其它詞構(gòu)成介詞短語(yǔ),在句中作狀語(yǔ)。 They walked till /until it was dark. 他們一直走到天黑。 Xiao Ming didn’ t leave home till / until his father came back. 小明直到他爸爸回來(lái)才離開家。 9. by the time 到。為止 (所在句子的主句應(yīng)用完成時(shí) ) By the time he gets there , his father has already gone. 他到家的時(shí)候,他爸爸已經(jīng)走了。 By the time I got to school, the class had already began. 我到校時(shí),已經(jīng)開始上課了。 難點(diǎn) —— as when while 的辨析 as when whil